package com.woniuxy.service;

import com.alibaba.fastjson.JSON;
import com.woniuxy.pojo.SysLog;
import com.woniuxy.pojo.User;
import com.woniuxy.util.HttpContextUtils;
import com.woniuxy.util.IPUtils;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.lang.reflect.Method;
import java.util.Date;

/**
 * 系统日志：切面处理类
 */
@Aspect
@Component
public class SysLogAspect {

    @Autowired
    private SysLogService sysLogService;

    //定义切点 @Pointcut
    //在注解的位置切入代码
    @Pointcut("@annotation( com.woniuxy.service.MyLog)")
    public void logPoinCut() {
    }
    //切面 配置通知
    @AfterReturning("logPoinCut()")
    public void saveSysLog(JoinPoint joinPoint) {
        System.out.println("切面。。。。。");
        //保存日志
        SysLog sysLog = new SysLog();
        //从切面织入点处通过反射机制获取织入点处的方法
        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        //获取切入点所在的方法
        Method method = signature.getMethod();
        //获取操作
        MyLog myLog = method.getAnnotation(MyLog.class);
        if (myLog != null) {
            String value = myLog.value();
            sysLog.setOperation(value);//保存获取的操作
        }
        //获取请求的类名
        String className = joinPoint.getTarget().getClass().getName();
        //获取请求的方法名
        String methodName = method.getName();
        sysLog.setMethod(className + "." + methodName);
        //请求的参数
        Object[] args = joinPoint.getArgs();
        //将参数所在的数组转换成json
       /* Stream<?> stream = ArrayUtils.isEmpty(args) ? Stream.empty() : Arrays.asList(args);
        List<Object> logArgs = stream
                .filter(arg -> (!(arg instanceof HttpServletRequest) && !(arg instanceof HttpServletResponse)))
                .collect(Collectors.toList());*/
        //过滤后序列化无异常
        // String params = JSON.toJSONString(args);
        //sysLog.setParams(params);
       /* Date date = new Date();
        long time = date.getTime();
        sysLog.setCreateDate(""+time);*/
        sysLog.setCreateDate(new Date());
        //获取用户名
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request1 = attributes.getRequest();
        HttpSession session = request1.getSession();
        if (session.getAttribute("USER_SESSION") != null) {
            User user = (User) session.getAttribute("USER_SESSION");
            String username = user.getRealname();
            //请求用户名
            sysLog.setUsername(username);
        }
        /*User user = (User) SecurityUtils.getSubject().getPrincipal();
        sysLog.setUsername(user.getRealname());*/
        //获取用户ip地址
        HttpServletRequest request = HttpContextUtils.getHttpServletRequest();
        sysLog.setIp(IPUtils.getIpAddr(request));
        System.out.println(sysLog);
        //调用service保存SysLog实体类到数据库
        sysLogService.saveLog(sysLog);
    }
}
